import time

def bubble_sort(nums):
    swapped = True
    while swapped:
        swapped =False
        for i in range (len(nums) - 1):
            if nums[i] > nums [i + 1]:
            nums [i], nums [i + 1] = nums [i + 1], nums [i]
            swapped = True

def read2list(filename):
    file = open(filename, 'r')
    data = file. readlines()
    return data

m1 = read2list ("m1_sorted.txt")
m2 = read2list ("m2_reverse.txt")
m3 = read2list ("m3_shuffle.txt")

t_start = time.time()
bubble_sort(m1)
t_finish = time.time()
print("m1_sorted", round((t_finish-t_start)*1000), "milliseconds")

t_start = time.time()
bubble_sort(m2)
t_finish = time.time()
print("m2_reverse", round((t_finish-t_start)*1000), "milliseconds")

t_start = time.time()
bubble_sort(m3)
t_finish = time.time()
print("m3_shuffle", round((t_finish-t_start)*1000), "milliseconds")
